Design and Characterization of 50W Switch Mode Power Supply Using Normally-On SiC JFET

Abstract:

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The 50W Quasi-resonant mode SMPS which adopted a normally-on-type SiC JFET as a switch has been designed and characterized. A simple decision circuit and an auxiliary power supply was utilized to safely protect the JFET from an in-rush current at initial operation stage and to provide sufficient negative voltage for a complete JFET drive. Even without a refine engineering, the SMPS showed 96% efficiency at a full load state.

Info:

Periodical:

Materials Science Forum (Volumes 645-648)

Edited by:

Anton J. Bauer, Peter Friedrichs, Michael Krieger, Gerhard Pensl, Roland Rupp and Thomas Seyller

Pages:

1151-1154

DOI:

10.4028/www.scientific.net/MSF.645-648.1151

Citation:

I. H. Kang et al., "Design and Characterization of 50W Switch Mode Power Supply Using Normally-On SiC JFET", Materials Science Forum, Vols. 645-648, pp. 1151-1154, 2010

Online since:

April 2010

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Price:

$35.00

[1] A. Melkonyan, Ph. D. thesis, University of Kassel (2007).

[2] I. Koch, et al.: Mater. Sci. Forum Vol. 615-617 (2009), p.907.

[3] K. Rueschenschmidt, et al.: Mater. Sci. Forum Vol. 600-603 (2009), p.901.

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